QDialog showing as empty?

Jamie_Edwards

Hi guys,

So I've tried creating a QDialog but have run into a problem that I cannot figure out.

So I know that the dialog window is being created and built, but upon calling the

show();

function, the window seems to end up being empty. The code is as follows:

This function works perfectly:

void Lantease::on_help_aboutLantease_clicked() {
    Ui::AboutLantease win(new QDialog());
    win.show();
    win.exec();
}

These seem like they work appropriately:

Ui::AboutLantease::AboutLantease(QDialog *parent) :
QDialog(parent) {
    setupUi();
}

void Ui::AboutLantease::setupUi() {
    if(parent->objectName().isEmpty()) {
        parent->setObjectName(QStringLiteral("dialog_aboutLantease"));
    }
    parent->resize(800, 600);

    createWidgets();
    createLayouts();
    enableDebugLines(true);
    buildAboutDialog();

    retranslateUi();

    std::cout << "Was enabled" << std::endl;
}

As I previously stated, the above works appropriately and I know this because I put cout calls in each function, all of which were outputted.

However, when the QDialog window is shown, it is completely empty AND there is no title, despite calling

setWindowTitle();

in retranslateUi().

Any ideas?

Efreen

I suppose that AboutLantease inherits from QDialog. In this case don't use parent (only for initialization in constructor (...(QDialog *parent) :
QDialog(parent)...)).

Jamie_Edwards

@Efreen do I just use "this" after that?

Efreen

"This" Instead of parent or nothing, don't call to parent.

I mean:

Ui::AboutLantease::AboutLantease(QDialog *parent) :
QDialog(parent) {
    setupUi();
}

void Ui::AboutLantease::setupUi() {
    if(this->objectName().isEmpty()) { //or objectName().isEmpty()
        this->setObjectName(QStringLiteral("dialog_aboutLantease")); //or setObjectName(QStringLiteral
    }
    this->resize(800, 600); //or resize(800, 600)

    createWidgets();
    createLayouts();
    enableDebugLines(true);
    buildAboutDialog();

    retranslateUi();

    std::cout << "Was enabled" << std::endl;
}